Finding the Fourth Proportional to 135,390.93, 186,839.50 and 74,140.98
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Solution
The fourth proportional to 135,390.93, 186,839.50 and 74,140.98 is: 102,314.56
Step by Step Solution
- Step 1: Write the proportion equation
135,390.93 : 186,839.50 = 74,140.98 : x - Step 2: Convert to fraction form
135,390.93/186,839.50 = 74,140.98/x - Step 3: Cross multiply
135,390.93x = 186,839.50 × 74,140.98 - Step 4: Simplify right side
135,390.93x = 13,852,463,632.71 - Step 5: Solve for x
x = 13,852,463,632.71/135,390.93 - Step 6: Final answer
x = 102,314.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.